In Dragon Ball Super, with the fate of the multiverse at stake and one of their fighters, Majin Buu, suddenly out of commission, Goku makes the split-second decision to have Frieza cover the last spot. At the end of the day, Universe 7 did win, and in no small part thanks to Frieza's help. But some viewers can't help but wonder why Goku picked Frieza over another powerful option: Doctor Gero's final creation, the perfect bio-android Cell.